Skills/PyPI/mcp-server-sms

mcp-server-sms@0.2.0

VERIFIED· not started

Publisher claims: "Stateless MCP tools for Volcengine SMS APIs" Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry PyPI (MCP server)Publisher pypi · publishing for 723 daysInstalls 144Last detonated 5d ago
$claude mcp add mcp-server-sms -- uvx mcp-server-sms
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Coverage

Not started: dependency install failed; the server itself was not observed.
Tested
the dependency install step · every file read, file written and host contacted by what ran
Not tested
server startup · the tool list · tool behavior

What this means for the label: Verified here covers what ran. The server's tools were not exercised with a real credential, so nothing about their behavior is asserted; the credential summary below says what to do with that.

Before you give it your token

It will ask for
VOLCENGINE_ACCESS_KEYVOLCENGINE_SECRET_KEYVOLCENGINE_SESSION_TOKEN
Where it talks to
no vendor host named in the codeAlso volcengine.com — not the publisher's domain; check what for before connecting.
What the honeypot saw
no credential files read · no network
What we could not test
server startup · the tool list · tool behavior

Connect it with a scoped credential, under the guard, and read the third-party hosts first. The code names volcengine.com as well as its own vendor. The guard injects VOLCENGINE_ACCESS_KEY, VOLCENGINE_SECRET_KEY, VOLCENGINE_SESSION_TOKEN only into requests to the host you bind (and its subdomains) and refuses the rest.

$vet-skills run --net declared -- uvx mcp-server-sms

Never paste a credential into a chat, a ticket or a report, including ours. How the guard holds it.

Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios; not started: dependency install failed; the server itself was not observed) on 2026-11-09 and scored it 89/100 (Verified). In what ran, nothing we could detect went wrong: no undeclared network egress, no credential reads, no persistent instruction writes. What it does with a real credential was not observed; the static findings and the publisher carry the rest of the score. Summary: no network, touches nothing outside the project, writes no memory.

Behavior trace

Honeypot run · 0 s · 2 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
0.1sprocessdependency install exit 1 ·
0.1sclaimednot started: dependency install failed (exit 1); the server itself was not observed
0.1sprocessscript backend runs setup only
0.1sprocessno install scripts to re-run

Static findings

MEDIUM
MCP server using network transport (SSE/HTTP)tests/test_apps.py:16 · MCP server using network transport (SSE/HTTP) — data sent over networkfrom mcp_server_sms.server import build_server, create_http_appFix: Namespace tool names and keep tool descriptions literal; no instructions to the agent inside them.
AST04
MEDIUM
MCP server using network transport (SSE/HTTP)tests/test_capabilities.py:20 · MCP server using network transport (SSE/HTTP) — data sent over networkfrom mcp_server_sms.server import build_server, create_http_appFix: Namespace tool names and keep tool descriptions literal; no instructions to the agent inside them.
AST04
MEDIUM
MCP server using network transport (SSE/HTTP)tests/conftest.py:10 · MCP server using network transport (SSE/HTTP) — data sent over networkfrom mcp_server_sms.server import build_server, create_http_appFix: Namespace tool names and keep tool descriptions literal; no instructions to the agent inside them.
AST04
MEDIUM
MCP server using network transport (SSE/HTTP)tests/test_transport.py:8 · MCP server using network transport (SSE/HTTP) — data sent over networkfrom mcp_server_sms.server import build_server, create_http_appFix: Namespace tool names and keep tool descriptions literal; no instructions to the agent inside them.
AST04
MEDIUM
Python subprocess execution detectedtests/test_capabilities.py:680 · Python subprocess execution detectedcompleted = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
File type combined with upload actionui/vite.config.js:22 · File type combined with upload action — agent may exfiltrate local data files|| id === path.join(packageRoot, 'src/mcp_server_sms/form_config.json')) && existsSync(id)) inputs.add(id);Fix: Remove the call, or declare the host in frontmatter and explain in the README what is sent and why.
AST07
MEDIUM
MCP server using network transport (SSE/HTTP)tests/test_capabilities.py:653 · MCP server using network transport (SSE/HTTP) — data sent over networkfrom mcp_server_sms.server import build_server, create_http_appFix: Namespace tool names and keep tool descriptions literal; no instructions to the agent inside them.
AST04

Cost to the agent

Instructions loaded
≈48 tok
1 file · 58 in bundle
Tool list per prompt
≈0 tok
0 tools · 0 per tool
Handshake
no reply
launch to tools/list, stdio
Undocumented tools
0
description under 20 chars · avg 0

Tokens estimated at four characters each. The tool list is re-read by the agent on every turn, so it is the number to compare between servers that do the same job: ranked across the index.

Known vulnerabilities

No advisories in OSV for mcp-server-sms@0.2.0 as of 5d ago. This is the package itself, not its dependencies.